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Antimicrobial sutures

  • US 3,987,797 A
  • Filed: 12/11/1974
  • Issued: 10/26/1976
  • Est. Priority Date: 02/25/1974
  • Status: Expired due to Term
First Claim
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1. A surgical aid having long-lasting, leach resistant antimicrobial properties the surface of which is coated with an ionic block elastomer of the formula:

  • ##EQU1## wherein R is C1 -15 alkylene, R2 is lower alkylene, R3, R4 and R5 are selected from hydrogen and lower alkyl, R1 is a liquid prepolymer having a molecular weight from 1,000 to 3,000 selected from the class consisting of polyether, silicone, polyurethane, and polyamide;

    Z and Y are selected from hydroxyl and isocyanate groups, ZY is the urethane residue of the condensation of Z and Y;

    n is an integer from 10 to 1,000;

    B- is an anionic polymer and X is an anionic or cationic antimicrobial compound.

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